Answer:
T=(total cost)
T=1.084x
Step-by-step explanation:
8.4% *x can be rewritten as 0.084x
Then you have 100% of x, the original cost, which is x
x+0.084x= 1.084x
Thus, the total cost is 1.084x
Answer:
We can calculate the p value using the fact that we are conducting a right tailed test:
Since the p value i approximately 0 we can conclude that we have enough evidence to say that with this method, the probability of a baby being a boy is significantly greater than 0.5
Step-by-step explanation:
Information given
n=172+39=211 represent the sample size
X=172 represent the number of boys in the sample
estimated proportion of of boys
is the value to verify
z would represent the statistic
represent the p value
Hypothesis to test
The ides is verify if with this method, the probability of a baby being a boy is greater than 0.5, so then the system of hypothesis are.:
Null hypothesis:
Alternative hypothesis:
The statitic is given by:
(1)
Replacing the info we got:
We can calculate the p value using the fact that we are conducting a right tailed test:
Since the p value i approximately 0 we can conclude that we have enough evidence to say that with this method, the probability of a baby being a boy is significantly greater than 0.5
The diagram of the right-angled triangle is shown below
Using the Pythagoras theorem
6² = a²+a²
36 = 2a²
18 = a²
a = √18 = 3√2
Answer:
-1/2 = x
Step-by-step explanation:
2 (x - 4) = 6x - 6 (distribute)
2x - 8 = 6x - 6 ( subtract 2x from each side)
- 8 = 4x - 6 ( add 6 to both sides)
-2 = 4x ( divide each side by 4)
x = -2/4 which simplifies to -1/2
Answer:
54
Step-by-step explanation:
it adds up by 8 then 6 then 8 then 6